/*
    Copyright (C) 2014-2019 de4dot@gmail.com

    This file is part of dnSpy

    dnSpy is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    dnSpy is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with dnSpy.  If not, see <http://www.gnu.org/licenses/>.
*/

using System;
using System.ComponentModel.Composition;
using dnSpy.Contracts.Debugger;
using dnSpy.Debugger.Shared;

namespace dnSpy.Debugger.Impl {
	[Export(typeof(DbgDispatcher))]
	sealed class DbgDispatcherImpl : DbgDispatcher {
		readonly DebuggerThread debuggerThread;

		internal Dispatcher Dispatcher => debuggerThread.Dispatcher;

		public DbgDispatcherImpl() {
			debuggerThread = new DebuggerThread("Debugger");
			debuggerThread.CallDispatcherRun();
		}

		public override bool CheckAccess() => Dispatcher.CheckAccess();

		public override void BeginInvoke(Action callback) {
			if (Dispatcher.HasShutdownStarted || Dispatcher.HasShutdownFinished)
				return;
			Dispatcher.BeginInvoke(callback);
		}
	}
}
